mirror of
https://github.com/espressif/esp-idf.git
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124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ESP_SYSTEM_H__
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#define __ESP_SYSTEM_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_attr.h"
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#include "esp_bit_defs.h"
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#include "esp_idf_version.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Reset reasons
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*/
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typedef enum {
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ESP_RST_UNKNOWN, //!< Reset reason can not be determined
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ESP_RST_POWERON, //!< Reset due to power-on event
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ESP_RST_EXT, //!< Reset by external pin (not applicable for ESP32)
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ESP_RST_SW, //!< Software reset via esp_restart
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ESP_RST_PANIC, //!< Software reset due to exception/panic
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ESP_RST_INT_WDT, //!< Reset (software or hardware) due to interrupt watchdog
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ESP_RST_TASK_WDT, //!< Reset due to task watchdog
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ESP_RST_WDT, //!< Reset due to other watchdogs
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ESP_RST_DEEPSLEEP, //!< Reset after exiting deep sleep mode
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ESP_RST_BROWNOUT, //!< Brownout reset (software or hardware)
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ESP_RST_SDIO, //!< Reset over SDIO
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ESP_RST_USB, //!< Reset by USB peripheral
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ESP_RST_JTAG, //!< Reset by JTAG
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} esp_reset_reason_t;
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/**
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* Shutdown handler type
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*/
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typedef void (*shutdown_handler_t)(void);
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/**
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* @brief Register shutdown handler
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*
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* This function allows you to register a handler that gets invoked before
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* the application is restarted using esp_restart function.
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* @param handle function to execute on restart
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if the handler has already been registered
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* - ESP_ERR_NO_MEM if no more shutdown handler slots are available
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*/
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esp_err_t esp_register_shutdown_handler(shutdown_handler_t handle);
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/**
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* @brief Unregister shutdown handler
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*
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* This function allows you to unregister a handler which was previously
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* registered using esp_register_shutdown_handler function.
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if the given handler hasn't been registered before
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*/
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esp_err_t esp_unregister_shutdown_handler(shutdown_handler_t handle);
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/**
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* @brief Restart PRO and APP CPUs.
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*
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* This function can be called both from PRO and APP CPUs.
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* After successful restart, CPU reset reason will be SW_CPU_RESET.
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* Peripherals (except for Wi-Fi, BT, UART0, SPI1, and legacy timers) are not reset.
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* This function does not return.
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*/
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void esp_restart(void) __attribute__ ((__noreturn__));
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/**
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* @brief Get reason of last reset
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* @return See description of esp_reset_reason_t for explanation of each value.
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*/
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esp_reset_reason_t esp_reset_reason(void);
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/**
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* @brief Get the size of available heap.
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*
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* @note Note that the returned value may be larger than the maximum contiguous block
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* which can be allocated.
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*
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* @return Available heap size, in bytes.
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*/
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uint32_t esp_get_free_heap_size(void);
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/**
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* @brief Get the size of available internal heap.
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*
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* @note Note that the returned value may be larger than the maximum contiguous block
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* which can be allocated.
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*
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* @return Available internal heap size, in bytes.
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*/
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uint32_t esp_get_free_internal_heap_size(void);
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/**
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* @brief Get the minimum heap that has ever been available
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*
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* @return Minimum free heap ever available
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*/
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uint32_t esp_get_minimum_free_heap_size( void );
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/**
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* @brief Trigger a software abort
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*
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* @param details Details that will be displayed during panic handling.
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*/
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void __attribute__((__noreturn__)) esp_system_abort(const char* details);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ESP_SYSTEM_H__ */
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